40146013 has 2 divisors, whose sum is σ = 40146014. Its totient is φ = 40146012.

The previous prime is 40145977. The next prime is 40146053. The reversal of 40146013 is 31064104.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30173049 + 9972964 = 5493^2 + 3158^2 .

It is a cyclic number.

It is not a de Polignac number, because 40146013 - 2¹³ = 40137821 is a prime.

It is a super-2 number, since 2×40146013² = 3223404719592338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40146053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20073006 + 20073007.

It is an arithmetic number, because the mean of its divisors is an integer number (20073007).

Almost surely, 2^40146013 is an apocalyptic number.

It is an amenable number.

40146013 is a deficient number, since it is larger than the sum of its proper divisors (1).

40146013 is an equidigital number, since it uses as much as digits as its factorization.

40146013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 40146013 is about 6336.0881464828. The cubic root of 40146013 is about 342.4108152181.

The spelling of 40146013 in words is "forty million, one hundred forty-six thousand, thirteen".